Evaluating Expressions
n^2-3n+8 if n=4
12
7k+4k
11k
a^12/a^2
a^10
(4" x "10^3)(6" x "10^4)
2.4" x " 10^8
(3a+6)+(6a+7)
9a+13
Write 4^-4 as a fraction in simplest form.
1/256
4|m-n| if m=-7 and n=2
36
6x-4x^2-x-7+5x^2
x^2+5x-7
(63x^18)/(9x^2)
7x^16
(3" x "10^7)/(4" x "10^5)
7.5" x " 10^1
(4n-6)-(3n+2)
n-8
Write as a fraction in simplest form.
(7/10)/(1 4/5)
7/18
s^2t-10 if s=-8 and t=3/4
38
w^5*w^-7*w
1/w
(cd^2)^4
c^4d^8
(8" x "10^3)+(5" x " 10^2)
8.5" x "10^3
(4x+7)-(8-3x)
7x-1
Which two consecutive integers does sqrt320 fall between?
17 & 18
-q^2-r^2+3s if q=9, r=-6, and s=-20
-177
(2xy)(5x^8y^3)
10x^9y^4
(5p^4*3p^3)^2
225p^14
(6" x " 10^10)-(1.2" x "10^11)
-6" x " 10^10
(x^2+7x-6)+(x^2+6x+3)
2x^2+13x-3
(9-2)^2-|3-17|+4
39
((a+b)^5)/(a-2b^2) if a=6 and b=-8
16/61
10h^10*2h^-1-3h^5*h^4
17h^9
((12c^3d^7)^2)/(18c^8d^10)
(8d^4)/(c^2)
(6.4" x "10^-3)(5" x "10^-4)-(2.9" x "10^-5)
-2.58" x "10^-5
-2(x-7)-(8x+11)
-10x+3
Write as a fraction in simplest form:
1/3-7/6*9/14+(2/3)^2
1/36